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Colloquium - Goodman

Recent Developments in Cache Coherence Protocols
University of Auckland
10/9/2009
3:00pm-4:30pm

"Source-Broadcast" is emerging as a class of cache coherence protocols implemented over point-to-point processor interconnects, combining the low latency of snoopy-based protocols with the scalability of directory-based protocols. The Quick Path Interconnect (QPI), recently introduced by Intel to replace the Front Side Bus, is the first commercial example to employ a source-broadcast protocol. I will describe variations and trade-offs of source-broadcast protocols and contrast them to the AMD Hypertransport approach.

James Goodman is a professor of computer science at the University of Auckland in Auckland, New Zealand, and emeritus professor at the University of Wisconsin-Madison. Goodman received a PhD from the University of California, Berkeley in 1980. He joined the faculty at the University of Wisconsin-Madison the same year as an assistant professor of computer science. Goodman's research is focused mainly on computer architecture: the hardware/software interface. His current interests are primarily focused on support for Transactional Memory. Goodman is most famous for his paper on "Using cache memory to reduce processor-memory traffic" where he was the first to describe snooping cache coherence protocols.

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